The Middle East Crisis and Japan's Energy Security: The Strategic Significance of Procuring Crude Oil from Kazakhstan

On March 23, 2026, it became clear that the Japanese government is considering the import of crude oil from Kazakhstan. This move indicates a significant turning point in Japan's energy security strategy as the threat of an Iranian blockade of the Strait of Hormuz becomes a reality. Prime Minister Sanae Takaichi mentioned Central Asia, South America, and Canada as alternative procurement sources during the same day's House of Councillors plenary session, clarifying that the government is accelerating its diversification strategy.

Japan relies on the Middle East for over 90% of its crude oil imports, and this structural vulnerability has long been a major security concern. As the Iran-Israel conflict intensifies and Iran introduced a de facto selective system for navigation in the Red Sea from March 15 to 17, this concern has transformed into a real risk. There have been confirmed cases where some vessels paid approximately $2 million in transit fees, highlighting the situation where the principle of free navigation has effectively collapsed.

The crude oil from Kazakhstan that the government is considering is expected to be supplied from oil fields in which the resource development giant INPEX holds interests. INPEX is currently selling Kazakhstani crude oil to the European market, but the government is considering redirecting some of it to Japan. However, this option comes with significant constraints. As Kazakhstan is a landlocked country, the crude oil must be transported via the Cape of Good Hope or the Suez Canal, both of which significantly increase the transportation distance compared to direct imports from the Middle East.

An increase in transportation costs is unavoidable. If the Cape of Good Hope route is chosen, the sailing distance could reach about 1.5 times that of the Middle East route, and transportation time may be extended by more than two weeks. The Suez Canal route is shorter in distance, but canal tolls and geopolitical risks must be taken into account. Furthermore, the quality of the crude oil is also an important factor. Kazakhstani crude oil is heavier compared to Middle Eastern oil, which may require certain adjustments for processing at Japanese refineries.

To address these challenges, the government is also considering the use of "swap transactions" in addition to direct deals. A swap transaction is a method of importing Kazakhstani crude oil by exchanging it for crude oil from other oil-producing countries, which is expected to improve transportation efficiency and reduce costs. This method has been utilized in the past as part of Japan's procurement diversification strategy developed since the oil shocks of the 1970s.

On the other hand, the government is also planning a joint stockpiling project with the United States. The idea is to store U.S. crude oil as part of the Strategic Petroleum Reserve within the U.S. and establish a system for prioritized access in emergencies. This initiative symbolizes the deepening of economic security aspects of the Japan-U.S. alliance and was reportedly discussed during a summit with the Trump administration on March 19. The U.S. has become one of the world's largest oil producers since the shale revolution, making it a reliable supply source for Japan.

This procurement diversification strategy is positioned not merely as a short-term crisis response but as an aim for a structural transformation of Japan's energy security. Gradually reducing dependence on the Middle East has been a long-standing challenge for Japan since the 1970s, but it has been difficult to achieve due to technical and economic constraints. However, the sudden geopolitical changes in 2026 are creating political momentum to realize this structural transformation.

Strengthening relations with Kazakhstan will also contribute to expanding Japan's strategic presence in the Central Asian region. As China strengthens its influence in the region through the Belt and Road Initiative, deepening cooperation in the energy sector will also contribute to maintaining the geopolitical balance. INPEX already has a long-standing business track record in Kazakhstan, and leveraging this existing relationship will enable a quicker procurement system compared to new entrants.

However, challenges remain. First, it is necessary to minimize the impact of rising procurement costs on domestic gasoline prices and industrial competitiveness. The government has already injected subsidies to suppress fuel prices, but this must be balanced with fiscal sustainability. Second, adjustments to refinery facilities and changes in operational systems will take time and incur costs. It is urgent to develop processing capabilities that correspond to the characteristics of Kazakhstani crude oil.

Furthermore, from the perspective of diversifying geopolitical risks, it is also essential to avoid increasing dependence on Kazakhstan alone. The government's mention of South America and Canada as candidates is likely in consideration of this point. Crude oil from Venezuela and Canadian oil sands has different supply routes and risk profiles compared to the Middle East and Kazakhstan, contributing to true diversification.

As of March 2026, the outlook for the situation in Iran remains uncertain. If Iran fully blocks the Strait of Hormuz, about 20% of the world's crude oil supply would be cut off, severely impacting not only Japan but the global economy as a whole. To prepare for this worst-case scenario, it is essential to implement multilayered measures, including diversification of procurement sources, increasing stockpiles, promoting energy-saving technologies, and accelerating the transition to renewable energy.

The current consideration of procuring crude oil from Kazakhstan demonstrates the government's proactive response to the energy security crisis facing Japan. However, this is merely the first step. In the medium to long term, it is necessary to build a sustainable energy security system while diversifying energy sources, creating multiple supply routes, and balancing decarbonization efforts. Japan's energy strategy is indeed at a historic turning point.